Тошкент вохаси шароитида зарарли хасва (eurygaster integriceps puton) популяцияси сонини чеклашда бионазорат агентларнинг аҳамияти
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- Trissolcus simoni (Mayr, 1879) - Simoni triscolusi
Trissolcus grandis (Thomson, 1860) - big triscolus
Location: Ortachirchik, Akhangaron, Piskent districts of Tashkent region. Meeting time: During the study, 2017 - 2021 met from 20 April to 5 June. Features: Regular species. The ovipositor protrudes from the top of the abdomen, the body covering is not a metallic luster (Scelionidae). The posterior part of the thorax is clearly divided into two parapsidal grooves (Trissolcus). The thigh of the foot is completely or partially darkened of the hind leg [2]. Trissolcus simoni (Mayr, 1879) - Simoni triscolusi Location: Ortachirchik, Akhangaron, Piskent districts of Tashkent region. Meeting time: During the study, 2017-2019 met from 20 April to 5 June. Features: Regular species. Specific morphological features of the imago: The ovary protrudes from the top of the abdomen, the body covering is not metallic luster .. The back of the breast is clearly divided into two parapsidal grooves (Trissolcus). The temporal part is bulging, in females the base of the mustache is thin, Nat. Volatiles & Essent. Oils, 2021; 8(4): 8166-8177 8173 the posterior part of the breast is transversely curved between the parapsidal fossa, and when enlarged it looks like a third parapsidal fossa [2]. Generation Telenomus. There are 25 species of this genus in the world [165]. 1. Tur: Telenomus sokolovi (Mayr, 1940) – Sokolov telenomusi Location: Ortachirchik, Akhangaron, Pskent districts of Tashkent region. Meeting time: During the study, 2017 - 2021 met from 20 April to 5 June. Features: Regular species. The ovary protrudes from the top of the abdomen, the body covering is not metallic luster. The posterior part of the chest is not separated by a parapsidal fossa (Telenomus). The forehead is smooth and shiny, the eyes are covered with hairs, the body is compact, the abdomen is the first tergiti without a sublateral tumor [2]. Experiments have shown that Trissolcus grandis (Thomson, 1860), Trissolcus simony (Mayr, 1879), and Telenomus sokolovi (Mayr, 1940), which belong to these two genera, are the dominant species of the noxious egg parasite. Subsequent studies were conducted based on generally accepted methods [2] for the study of ovarian parasites of the ovary (because their bioecology is very close and similar) and collected theoretical and practical data on the total contamination of ovipositor eggs with telenomins. In Ortachirchik, Ahangaron, Pskent districts of Tashkent region in the second decade of May 2017, the incidence of harmful weevil eggs in the grain fields with egg-laying parasites was found to be 86.4-91.2%. In order to study the seasonal infestation of sorghum eggs with egg-laying parasites, the research started from the period of sorghum migration (06.04) and continued until the grain harvest (15.06). The experiments were conducted for 40 days, from April 15 to May 25. In the laboratory, the eggs collected from the weeds were left in the field for one week to be damaged in the field and then brought to the laboratory conditions and their degree of contamination was determined. As of April 20, the damage rate of field eggs left in field conditions was 5.1%. On April 25 and 30, the proportion of infected eggs was 11.4 and 13.5%, respectively. The figure was 37.8% on the fifth day of the first decade of May and 75.8% on the ninth day. The data show that the rate of infection of ovipositor eggs with oviparous parasites has been steadily increasing since the beginning of the experiment - April 20, and for a period of one month, ie May 19, was 98.5%. The parasitic activity of oviparous parasites was quite high, and by the end of the experiment, the flow rate was always 100% on the day of calculation (Fig. 5). Nat. Volatiles & Essent. Oils, 2021; 8(4): 8166-8177 8174 Figure 4.5. Infection of the eggs of imagolari, which hibernate with harmful ovaries, by ovarian parasitic entomophagous The density of parasites in the field is also of great importance in the process of oviposition of egg-laying parasites and in their selection. In the initial periods of the experiment, i.e., April 20; One or two egg lesions were detected from a set of hashish eggs placed in grain fields for 25 days of infestation. On April 20 and 25, only 3 or 4 of the 14 eggs in the set of eggs installed in the grain fields were infected with the telenomin parasite (Figure 6). Then the number of infected eggs from each set increased. It has been found that parasite imagoes can infect all eggs as a result of their ability to select eggs in this way and the limited ability to select them as the density of the parasites increases. Download 438.11 Kb. Do'stlaringiz bilan baham: |
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